IR Corrected Lens – CCL13028MP

Wide-angle Megapixel Large aperture CCTV lens IR corrected (night vision) 1/3″ M12 lens 121°(D) F2.0 security surveillance.

2.8mm M12 IR Corrected Wide Angle Lens

This 2.8mm M12 IR corrected wide-angle lens is designed for compact camera systems requiring broad scene coverage, Megapixel imaging, and stable visible-to-near-infrared optical performance. With a 121° diagonal FOV, 104° horizontal FOV, 78° vertical FOV, and 1/3″ image format, it provides wide-area imaging in a compact M12 optical configuration.

The IR-corrected optical design helps maintain focus consistency across visible and near-infrared wavelengths, making this lens particularly suitable for day-and-night cameras, smart security systems, and embedded vision applications. Its M12 × 0.5 mount, 5.31mm BFL, and 0.2m MOD further support compact camera integration.

For more compact optical solutions, explore TOWIN’s M12 Lenses.

IR Corrected Lens Core Highlights

• 121° Ultra-Wide FOV – Provides broad scene coverage for compact surveillance, robotics, and embedded vision systems.
• IR Corrected Optical Design – Helps maintain focus consistency across visible and near-infrared wavelengths for day/night imaging.
• Megapixel Resolution – Supports higher image detail than VGA-class compact optics for modern embedded camera systems.
• F2.0 Aperture – Provides a practical balance between light gathering capability and compact optical construction.
• M12 × 0.5 Mount – Simplifies integration into compact camera modules and space-constrained imaging equipment.

IR Corrected Lens Applications

The main advantage of this lens is the combination of wide-angle coverage and IR-corrected imaging. Rather than being designed solely for extreme fisheye coverage, the 2.8mm focal length provides a broad 121° diagonal field of view while the IR-corrected design makes it more suitable for systems that operate under changing illumination conditions.

The lens can therefore be used in cameras that need to maintain reliable focus when switching between daytime visible-light imaging and nighttime infrared illumination.

Core Application Scenes

Designed for day-and-night wide-angle surveillance applications, this lens is suitable for camera systems requiring broad coverage and stable optical performance across different lighting conditions.

Typical applications include:

• Smart security cameras
• Day/night surveillance cameras
• Indoor monitoring systems
• Compact IP cameras
• Robotics vision
• Embedded vision systems
• Smart home cameras
• Access and perimeter monitoring
• Low-light monitoring systems
• Wide-area environmental observation

For security applications where both daytime and nighttime imaging are required, this lens can support TOWIN’s Smart Security solutions.

Compatible Devices

Day/Night Security Cameras
The IR-corrected design helps maintain focus stability when cameras transition between visible-light and near-infrared illumination.

Compact IP Cameras
The M12 × 0.5 mount and wide FOV make the lens suitable for small network cameras requiring broad scene coverage.

Embedded Vision Cameras
The compact optical structure can be integrated into embedded imaging devices where both size and optical performance are important.

Robotics Cameras
The 121° diagonal FOV provides broad environmental visibility for mobile and compact robotic platforms.

Smart Home Cameras
The combination of wide-angle coverage and IR correction makes the lens suitable for compact monitoring devices operating throughout the day and night.

For applications specifically requiring robotics-based environmental perception, TOWIN also provides dedicated Robotics Vision solutions.

Why IR Correction Matters

In a conventional optical system, visible light and near-infrared wavelengths may focus at different positions. This can result in image softness or focus shifts when a camera switches from daytime imaging to infrared-assisted nighttime operation.

An IR-corrected lens is designed to reduce this wavelength-dependent focus shift. This makes the 2.8mm lens particularly useful for camera systems that combine visible-light imaging with near-infrared illumination.

When selecting a lens for day/night applications, engineers should consider not only focal length and field of view, but also sensor format, aperture, IR performance, and the camera’s illumination conditions. TOWIN’s Lens Selection Guide provides additional guidance for evaluating these parameters.

Wide-Angle Coverage and Distortion

With a 121° diagonal field of view, this lens provides substantially wider coverage than conventional narrow-angle optics. Its -39% optical distortion is a trade-off associated with achieving a broad viewing angle in a compact 2.8mm optical design.

For surveillance, robotics, and environmental awareness, this level of distortion can be acceptable when broad coverage is more important than precise geometric reproduction. For measurement and precision inspection applications, a dedicated low-distortion optical design should be considered instead.

TOWIN offers dedicated Low Distortion Lenses for applications where image geometry is a higher priority.

You can also use the FOV Calculator to estimate the field of view required for a specific camera and installation distance.

Frequently Asked Questions

Q: What is the field of view of this 2.8mm M12 lens?
A: The lens provides a 121° diagonal FOV, 90° horizontal FOV, and 64° vertical FOV for broad-area imaging.

Q: What does IR corrected mean for this lens?
A: IR correction is designed to reduce focus shifts between visible and near-infrared wavelengths, helping maintain image sharpness when a camera operates under both daytime and infrared illumination.

Q: Is this lens suitable for day/night security cameras?
A: Yes. Its IR-corrected optical design and 121° diagonal FOV make it well suited to compact day/night surveillance cameras.

Q: What sensor size does this lens support?
A: The lens is designed for a 1/3″ image format and supports Megapixel-resolution imaging.

Q: Is this a low-distortion lens?
A: No. The specified optical distortion is -39%. The lens is designed to prioritize wide-angle coverage in a compact optical package rather than precision geometric reproduction.

Q: What is the minimum object distance?
A: The specified M.O.D. is 0.2m, allowing the lens to be used for relatively close-range monitoring and embedded imaging applications.

Q: Can this lens be used for robotics vision?
A: Yes. Its 121° diagonal FOV provides broad environmental visibility, making it suitable for compact robotic cameras and mobile vision systems.

Q: What is the difference between IR corrected and IR cut?
A: An IR-cut element blocks unwanted infrared wavelengths from reaching the image sensor, while an IR-corrected optical design is intended to maintain focus performance across visible and near-infrared wavelengths. They address different optical requirements.

Online contact